CN101275400A - Method for mounting large-sized rolling mills - Google Patents
Method for mounting large-sized rolling mills Download PDFInfo
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- CN101275400A CN101275400A CNA2007100107244A CN200710010724A CN101275400A CN 101275400 A CN101275400 A CN 101275400A CN A2007100107244 A CNA2007100107244 A CN A2007100107244A CN 200710010724 A CN200710010724 A CN 200710010724A CN 101275400 A CN101275400 A CN 101275400A
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Abstract
The invention relates to an installation of metallurgy industry rolling mills, pinch pass mill, burnishing machines and the like large-scale mechanical equipment, especially to an installation method of a large-scale rolling mill, which is characterized in that the installation of a large-scale rolling mill is realized by the process steps of base preparation, rolling mills bearing plate installation, rolling mills motherboard transverse alignment, sling preparation, memorial archway transverse alignment, memorial archway check-up, roll-changer installation and rolling mill accessory installation. The invention satisfies all requirement of different construction sites, effectively resolves hanging difficult problem, saves work efficiency about 6-7 times, ensures installation quality, uses hydraulic bolt stretchers to avoid bolt up force moment from macrolesion bolt, and adopts small fastening force moment to allow rolling mills subbase to become flexible. Work difference bands are used to control the roll changing transmission device central line and the rolling mill central line to ensure installation quality. According to combination of calculation and on-site practicality, the invention not only can be used for rolling mills installation, but also can spread in mechanical equipment installation with common advising signification.
Description
Technical field
The present invention relates to a kind of similar heavy mechanical equipment such as metallurgy industry milling train, planisher, polishing machine that is applicable to and install, particularly a kind of mounting method of large-sized rolling mills.
Background technology
At present, in the rolling system of iron and steel enterprise, milling train is the heart of whole system, and the position is very important, and along with science and technology development, increasing new technology, new technology are applied in the rolling system.The operation that milling train is installed is very complicated, the incompatible installation requirement of novel rolling mill at present of old mounting method.Old mounting method has great difficulty, thereby influences service life of equipment guaranteeing installation quality, assurance construction period difficulty.In the prior art: the setting of (1) backing plate: according to the appearance and size of base with bear weight 40～60 groups of backing plates are set, every group of backing plate is made up of a flat bolster and a pair of taper liner plate; Flat bolster and concrete surface grind flat, make flat bolster upper surface levelness reach 0.05mm/m.Guarantee the long-pending and flat bolster upper surface levelness of flat bolster and concrete surface.The absolute altitude that be difficult to guarantee flat bolster is in ± 0.30mm.(2) prohibit solid stone bolt with the trip hammer.Can't quantified controlling to prohibiting solid moment.(3) roll change transmission device distance is difficult to guarantee installation quality with central point control roll change transmission device center line and milling train center line.
Summary of the invention
The present invention has overcome the defective of above-mentioned existence, and purpose provides a kind of mounting method that is applicable to similar heavy mechanical equipments such as metallurgy industry milling train, planisher, polishing machine, and a kind of mounting method of large-sized rolling mills particularly is provided.
The mounting method content Description of large-sized rolling mills of the present invention:
The mounting method of large-sized rolling mills of the present invention is characterized in that: the installation of large-sized rolling mills be by: the process realization of basis preparations, installations of milling train backing plate, milling train base plate centering, suspender preparations, memorial archway centering, memorial archway inspection, changing rig installation and the installation of milling train annex:
Prepare on the basis
(1) center target, absolute altitude reference point buries underground
Construction characteristic according to the installing engineering of large-sized rolling mills is provided with rolling centerline, milling train cross central line, milling train reductor center line, changing rig center line; According to center line the permanent center target is set, every equipment side should be provided with a permanent reference point;
(2) when civil engineering finishes, the basis is carried out an acceptance inspection, check and give center, the elevation dimension that stays sleeve, and the close appearance and size in basis and memorial archway bottom;
(3) foundation settlement survey
A, buried the permanent relief of foundation settlement survey underground;
B, per 10 days survey once and carry out record, and equipment is installed and need be treated that foundation settlement carries out after tending towards stability again;
(4) basis cutter hair
Before equipment is in place, the Equipment Foundations surface at back-grouting place should be removed laitance, cut a hole into pitted skin, to guarantee the back-grouting quality;
The milling train backing plate is installed
According to the appearance and size of base with bear weight 40～60 groups of backing plates are set, every group of backing plate is made up of a flat bolster and a pair of taper liner plate;
Flat bolster is installed and is adopted switch base plate fluid grouting method:
(1) basis cutter hair: the concrete surface to the backing plate lay down location is all cut a hole hair;
(2) below the backing plate lay down location, cut a hole one than each 50mm of backing plate length and width, the hole of dark 80mm;
(3) hang center line, determine the plan-position of flat bolster;
(4) bury 3 bolts underground
According to the size of flat bolster, determine the position of 3 bolts, bolt adopts M12 or M16 to hole on the basis with electric hammer, and aperture Φ 25mm is fixed on M12 or M16 bolt on the basis with the grouting material;
(5) prop up the pawl welding, adopt steel plate or angle steel to be welded on the flat bolster, flat bolster is fixed, so that flat bolster levelness and the absolute altitude adjusted with two bolts as a pawl;
(6) flat bolster adjustment, the absolute altitude of flat bolster is controlled at ± 0.30mm, and levelness is controlled in the 0.05mm/m, and flat bolster, machining accuracy must reach R
a3.2 taper liner plate gradient is 1: 50;
(7) grouting after the flat bolster adjustment meets the requirements, is not in the milk with there being little swollen grouting material of contraction, notes during grouting the air of inside is driven away, adopts steel band to twitch back and forth, and grouting height anomaly backing plate upper surface 3-5mm needed health 24 hours after the grouting;
The rolling mill base centering
(1) base places the taper liner plate before in place, checks the height of reserving sleeve and the cutter hair of surface of base;
(2) base front T type stone bolt in place is in place, confirms that T connector correctly embeds in the anchor slab groove, carry out anchor slab channel opening direction record;
(3) base hoisted in position;
(4) base centering main points: the rolling mill base centering is a benchmark with the outlet side base,
A, rolling centerline: weigh down according to the center line that hangs, with line and to divide center line to align with plant bottom case to get final product installation accuracy ± 0.30mm;
B, milling train center line:
The distance of outlet base and milling train center line is measured with inside micrometer, and precision is ± 0.30mm milling train center line and the measurement of paralleism that exports base, parallelism≤0.05mm;
Distance between C, base
With the outlet base is benchmark, according to memorial archway and base interface width size, by-the 0.10mm installation;
D, base horizontal degree measurement:
Single rolling mill base levelness :≤0.05mm/m is with closing the picture horizontal survey;
Levelness between two bases: measure with precision level, require to be≤0.03mm/m;
The final inspection of base will be carried out after intact in that stone bolt is fastening, will set up the mark at rolling center on base;
E, stone bolt are fastening
The fastening special tool of using of stone bolt adopts hydraulic bolt tensioning jack, carries out fastening according to the fastening force that designs;
F, base back-grouting
The base back-grouting has three kinds of methods:
The one, latter two base of rolling mill base centering is in the milk simultaneously, and this method is used for the pre-embedded anchoring bolts pattern;
The 2nd, outlet side base grouting earlier after the rolling mill base centering, this method is used for anchor case gib head stone bolt pattern;
The 3rd, treat grouting again after the memorial archway centering, this method is used for rolling mill base and memorial archway simultaneously with the fixing pattern of stone bolt;
(5) technical requirements of rolling mill base installation and measuring:
1. center line: ± 0.30mm in length and breadth;
2. parallelism: ± 0.30mm, the distance≤0.10mm/m from rolling centerline to the outlet side base;
3. absolute altitude: ± 0.30mm;
4. levelness: separately: 0.05mm/m, adjacent: 0.03mm/m;
Suspender is prepared
Manufacture one of suspender for solving lifting, suspender has six pin shaft holes by two girders on girder, and a suspension hook and four bearing pins are formed, and with the two ends of two cranes while slings, the middle suspension hook of suspender hangs equipment during lifting.
The memorial archway centering
(1) centering transmission side memorial archway is at first measured and lower transverse beam bonding surface size, and guarantees that the gap with the outlet base is zero;
(2) rolling mill base and transmission side memorial archway connecting bolt is fastening temporarily;
(3) lower transverse beam is installed, and transmission side memorial archway and lower transverse beam is fastening temporarily;
(4) hold out against the fore side memorial archway from the outside with jack, till the gap with lower transverse beam does not have;
(5) fore side memorial archway and lower transverse beam is fastening temporarily with connecting bolt;
(6) install crossbeam;
Memorial archway detects
(1) with inside micrometer or with transit detection window verticality, installation accuracy:＜0.05mm/m;
(2) detect the positional precision at milling train center with inside micrometer, installation accuracy: ± 0.50mm;
(3) detect the parallelism detection of milling train center, installation accuracy :≤0.10mm/m with inside micrometer or with transit;
(4) with closing picture horizontal detection memorial archway bottom water Pingdu, installation accuracy:＜0.10mm/m;
(5) with closing picture horizontal detection memorial archway top water Pingdu, installation accuracy:＜0.20mm/m;
(6) memorial archway and base contact surface gap are 0, require the 0.02mm clearance gauge not go into;
Changing rig is installed
It is benchmark that the roll change transmission device is installed with the milling train center line, carries out centering in conjunction with the memorial archway alignment error, and roll change transmission device center line and milling train center line are controlled within the same tolerance range;
The milling train annex is installed
Milling train body annex install to adopt, earlier in outer, the principle that gets on, get off in back, erection sequence: breast roll is installed, the backing roll track is installed, the working roll track is installed, last water discharging board is installed, following water discharging board is installed, the jig installation, milling train is piping erection at random.
The present invention adopts special hanger, has satisfied all requirements of different job sites, has effectively solved a lifting difficult problem.The method that adopts the grouting of switch base plate fluid changes into the base centering of complexity the centering of backing plate for the rolling mill base centering.Save 6～7 times of work efficiency, guarantee installation quality.Adopt hydraulic bolt tensioning jack special tool foot bolt securely, make all stone bolt Tightening moments identical and can determine the numerical value of Tightening moment, avoided fastening torque of bolt macrolesion bolt, Tightening moment makes rolling mill base loosening for a short time.Recruitment difference band control roll change transmission device center line and milling train center line have guaranteed installation quality.Adopt three kinds of different grouting methods of rolling mill base, satisfied the needs of different rolling mill structure patterns, guaranteed installation quality.The present invention not only can be used for the installation of milling train according to calculating and on-the-spot actual combining, and can also be generalized to similar heavy mechanical equipment and install, and general directive significance is arranged.
Description of drawings
Fig. 1 is a large-sized rolling mills installation technology flow chart
Fig. 2 is a milling train flat bolster scheme of installation
Fig. 3 base installation and measuring method figure
Fig. 4 is the hanger structure schematic diagram
Fig. 5 is a suspender using method schematic diagram
Fig. 6 detects memorial archway window verticality schematic diagram with inside micrometer
Fig. 7 is with transit detection window memorial archway verticality schematic diagram
Fig. 8 detects memorial archway parallelism schematic diagram with inside micrometer
Fig. 9 detects memorial archway parallelism schematic diagram with transit
Figure 10 is that memorial archway bottom water Pingdu detects schematic diagram
Figure 11 is a memorial archway top water Pingdu schematic diagram
Figure 12 is the changing rig scheme of installation
The specific embodiment
4300 milling trains are at present both at home and abroad advanced reversible mills, because its installation accuracy height, memorial archway tonnage are big, are very typical during present milling train is installed.The present invention specifies below in conjunction with accompanying drawing with the test that is installed as of 4300 milling trains.
See Fig. 1,, adopt according to large-sized rolling mills installation technology flow chart; Basis preparation, the installation of milling train backing plate, milling train base plate centering, suspender preparation, memorial archway centering, memorial archway inspection, changing rig are installed and the process of milling train annex installation carries out.
Prepare on the basis: the construction characteristic according to engineering is provided with rolling centerline, milling train cross central line, milling train reductor center line, changing rig center line.According to center line the permanent center target is set, every equipment side should be provided with a permanent reference point.
, the basis is carried out an acceptance inspection when finishing in civil engineering, the main check given center, the elevation dimension that stays sleeve, and basis close appearance and size bottom memorial archway.
Foundation settlement survey has been buried the permanent relief of foundation settlement survey underground.
Surveyed once and carry out record in per 10 days, equipment is installed and need be treated that foundation settlement carries out after tending towards stability again.
Basis cutter hair before equipment is in place, should be removed the Equipment Foundations surface at back-grouting place laitance, cut a hole into pitted skin, to guarantee the back-grouting quality.
See Fig. 2, the milling train backing plate is installed
According to the appearance and size of base with bear weight 56 groups of backing plates are set, every group of backing plate is made up of a flat bolster and a pair of taper liner plate, and flat bolster is installed and adopted switch base plate fluid grouting method, basis cutter mao: the concrete surface to the backing plate lay down location is all cut a hole hair; Cutter one hole below the backing plate lay down location than the dark 80mm of each 50mm of backing plate length and width; Hang center line, determine the plan-position of flat bolster; Bury 3 bolts underground: according to the size of flat bolster, determine the position of 3 bolts, bolt adopts M12 or M16 to hole on the basis with electric hammer, and aperture Φ 25mm is fixed on M12 or M16 bolt on the basis with the grouting material; Prop up the pawl welding: be welded on the flat bolster as a pawl with steel plate or angle steel.With two bolts flat bolster is fixed, so that flat bolster levelness and the absolute altitude adjusted; Flat bolster is adjusted: the absolute altitude of flat bolster is controlled at ± 0.30mm.The levelness of flat bolster is comparatively crucial, and it is related to after the backing plate centering and the contact area of rolling mill base, and levelness should be controlled in the 0.05mm/m.Flat bolster, machining accuracy must reach Ra3.2, and taper liner plate gradient is 1: 50.Grouting: after the flat bolster adjustment meets the requirements, be not in the milk with there being little swollen grouting material of contraction.Note during grouting the air of inside is driven away, adopt steel band to twitch back and forth, grouting height anomaly backing plate upper surface 3-5mm.Needed health after the grouting 24 hours.
Rolling mill base centering: before base is in place the taper liner plate is placed, check the height of reservation sleeve and the cutter hair of surface of base; Base front T type stone bolt in place is in place, confirms that T connector correctly embeds in the anchor slab groove, carry out anchor slab channel opening direction record; The base hoisted in position; Base centering main points: the rolling mill base centering is a benchmark with the outlet side base
A, rolling centerline: weigh down according to the center line that hangs, with line and to divide center line to align with plant bottom case to get final product, installation accuracy ± 0.30mm is visually 0.
B, milling train center line:
The distance of outlet base and milling train center line is measured with inside micrometer, and precision is ± 0.30mm milling train center line and the measurement of paralleism that exports base, parallelism≤0.05mm.
Distance between C, base
With the outlet base is benchmark, according to memorial archway and base interface width size, by-the 0.10mm installation.
D, base horizontal degree measurement:
Single rolling mill base levelness :≤0.05mm/m is with closing the picture horizontal survey.
Levelness between two bases: measure with precision level, require to be≤0.03mm/m.，
The final inspection of base will be carried out after intact in that stone bolt is fastening, will set up the mark at rolling center on base.
E, stone bolt are fastening
The fastening special tool hydraulic bolt tensioning jack of using of stone bolt carries out fastening according to the fastening force that designs.
F, base back-grouting
4300 rolling mill base stone bolt are anchor case gib head formulas.Outlet side base grouting earlier after the rolling mill base centering, the entrance side base is in grouting after the memorial archway centering.
See Fig. 3, rolling mill base installation and measuring method and technical requirements
Technical requirements:
1. center line: ± 0.30mm in length and breadth is visually zero;
2. parallelism: ± 0.30mm, the distance from rolling centerline to the outlet side base
(B1+B2)/2-(B3+B4)/2≤0.05mm/m
(C1+C2)/2-(C3+C4)/2≤0.10mm/m
3. absolute altitude: ± 0.30mm
4. levelness: separately: 0.05mm/m, adjacent: 0.03mm/m.
See Fig. 4, for solving the lifting problem, manufacture one of suspender, suspender has six pin shaft holes by two girders on girder, and a suspension hook and four bearing pins are formed, and can be used for different job sites; Girder is welded by steel plate, and bearing pin forges back machining.Suspension hook is a forging.With the two ends of two cranes while slings, the middle suspension hook of suspender hangs equipment during lifting.
See the lifting of Fig. 5 mill housing, 4300 milling train monolithic memorial archways weigh 300 tons, and main rolling striden two 200 tons of cranes, hangs the two ends of suspender during lifting with two 200 tons of cranes, with the gib head drop mill of suspender.
Memorial archway is installed must guarantee that the binding site of memorial archway and base reaches " 0 gap ", for realizing this index, when being installed, rolling mill base between two bases, given reserving-interference clearance of 0.10mm, after the grouting earlier of outlet base, hang in memorial archway, fall by the memorial archway own wt, after testing, contact surface is not all gone into the 0.02mm clearance gauge, has reached installation specification.In the detection of memorial archway verticality, levelness, the method that provides in " large-sized rolling mills fitting operation method " has been provided, effect is obvious: the memorial archway verticality has only reach 0.05mm at 2, and all the other all are 0; The skew of two memorial archway levelnesss is controlled at 0.05mm.Inlet grouting again behind the memorial archway centering.
The memorial archway accuracy detection is seen Fig. 6,7, with inside micrometer or with transit detection window verticality, installation accuracy:＜0.05mm/m.
Positional precision to the milling train center detects, with the positional precision at inside micrometer detection milling train center, installation accuracy: ± 0.50mm.
See Fig. 8,9, detect, detect installation accuracy with inside micrometer or with transit :≤0.10mm/m with milling train center parallelism;
See Figure 10, memorial archway bottom water Pingdu is with closing picture horizontal detection installation accuracy:＜0.10mm/m.
See Figure 11, memorial archway top water Pingdu is with closing picture horizontal detection, installation accuracy:＜0.20mm/m;
All memorial archways and base contact surface gap are 0, require the 0.02mm clearance gauge not go into.
See the installation of Figure 12 changing rig, it is benchmark that the roll change transmission device is installed with the milling train center line, carries out centering in conjunction with the memorial archway alignment error, and roll change transmission device center line and milling train center line are controlled within the same tolerance range; Do not enter and the driven load increase otherwise the roll dress will occur, coupling spindle occurs under the serious situation and twist off phenomenon.4300 mill roll devices are about 40m, and it is 2mm that the mounting technique standard allows maximum deviation, and with tolerance range control roll change transmission device center line and milling train center line, the center line maximum deviation is 0.20mm.
Milling train body annex install to adopt, earlier in outer, the principle that gets on, get off in back.Erection sequence: breast roll is installed, and the backing roll track is installed, and the working roll track is installed, and last water discharging board is installed, and following water discharging board is installed, jig installation, milling train piping erection etc. at random.
Claims (9)
1. the mounting method of a large-sized rolling mills is characterized in that: the installation of large-sized rolling mills be by: the process realization of basis preparations, installations of milling train backing plate, milling train base plate centering, suspender preparations, memorial archway centering, memorial archway inspection, changing rig installation and the installation of milling train annex.
2. the mounting method of large-sized rolling mills according to claim 1 is characterized in that: said basis prepare be:
(1) center target, absolute altitude reference point buries underground
Construction characteristic according to the installing engineering of large-sized rolling mills is provided with rolling centerline, milling train cross central line, milling train reductor center line, changing rig center line; According to center line the permanent center target is set, every equipment side should be provided with a permanent reference point;
(2) when civil engineering finishes, the basis is carried out an acceptance inspection, check and give center, the elevation dimension that stays sleeve, and the close appearance and size in basis and memorial archway bottom;
(3) foundation settlement survey
A, buried the permanent relief of foundation settlement survey underground;
B, per 10 days survey once and carry out record, and equipment is installed and need be treated that foundation settlement carries out after tending towards stability again;
(4) basis cutter hair
Before equipment is in place, the Equipment Foundations surface at back-grouting place should be removed laitance, cut a hole into pitted skin, to guarantee the back-grouting quality.
3. the mounting method of large-sized rolling mills according to claim 1 is characterized in that: said milling train backing plate is installed and is:
According to the appearance and size of base with bear weight 40～60 groups of backing plates are set, every group of backing plate is made up of a flat bolster and a pair of taper liner plate;
Flat bolster is installed and is adopted switch base plate fluid grouting method:
(1) basis cutter hair: the concrete surface to the backing plate lay down location is all cut a hole hair;
(2) below the backing plate lay down location, cut a hole one than each 50mm of backing plate length and width, the hole of dark 80mm;
(3) hang center line, determine the plan-position of flat bolster;
(4) bury 3 bolts underground
According to the size of flat bolster, determine the position of 3 bolts, bolt adopts M12 or M16 to hole on the basis with electric hammer, and aperture Φ 25mm is fixed on M12 or M16 bolt on the basis with the grouting material;
(5) prop up the pawl welding, adopt steel plate or angle steel to be welded on the flat bolster, flat bolster is fixed, so that flat bolster levelness and the absolute altitude adjusted with two bolts as a pawl;
(6) flat bolster adjustment, the absolute altitude of flat bolster is controlled at ± 0.30mm, and levelness is controlled in the 0.05mm/m, and flat bolster, machining accuracy must reach R
a3.2 taper liner plate gradient is 1: 50;
(7) grouting after the flat bolster adjustment meets the requirements, is not in the milk with there being little swollen grouting material of contraction, notes during grouting the air of inside is driven away, adopts steel band to twitch back and forth, and grouting height anomaly backing plate upper surface 3-5mm needed health 24 hours after the grouting.
4. the mounting method of large-sized rolling mills according to claim 1, it is characterized in that: said rolling mill base centering is:
(1) base places the taper liner plate before in place, checks the height of reserving sleeve and the cutter hair of surface of base;
(2) base front T type stone bolt in place is in place, confirms that T connector correctly embeds in the anchor slab groove, carry out anchor slab channel opening direction record;
(3) base hoisted in position;
(4) base centering main points: the rolling mill base centering is a benchmark with the outlet side base,
A, rolling centerline: weigh down according to the center line that hangs, with line and to divide center line to align with plant bottom case to get final product installation accuracy ± 0.30mm;
B, milling train center line:
The distance of outlet base and milling train center line is measured with inside micrometer, and precision is ± 0.30mm milling train center line and the measurement of paralleism that exports base, parallelism≤0.05mm;
Distance between C, base
With the outlet base is benchmark, according to memorial archway and base interface width size, by-the 0.10mm installation;
D, base horizontal degree measurement:
Single rolling mill base levelness :≤0.05mm/m is with closing the picture horizontal survey;
Levelness between two bases: measure with precision level, require to be≤0.03mm/m;
The final inspection of base will be carried out after intact in that stone bolt is fastening, will set up the mark at rolling center on base;
E, stone bolt are fastening
The fastening special tool of using of stone bolt adopts hydraulic bolt tensioning jack, carries out fastening according to the fastening force that designs;
F, base back-grouting have three kinds of methods:
The one, latter two base of rolling mill base centering is in the milk simultaneously, and this method is used for the pre-embedded anchoring bolts pattern;
The 2nd, outlet side base grouting earlier after the rolling mill base centering, this method is used for anchor case gib head stone bolt pattern;
The 3rd, treat grouting again after the memorial archway centering, this method is used for rolling mill base and memorial archway simultaneously with the fixing pattern of stone bolt;
(5) technical requirements of rolling mill base installation and measuring:
1. center line: ± 0.30mm in length and breadth;
2. parallelism: ± 0.30mm, the distance≤0.10mm/m from rolling centerline to the outlet side base;
3. absolute altitude: ± 0.30mm;
4. levelness: separately: 0.05mm/m, adjacent: 0.03mm/m.
5. the mounting method of large-sized rolling mills according to claim 1, it is characterized in that: said suspender preparation is: manufacture one of suspender, suspender is by two girders, six pin shaft holes are arranged on girder, a suspension hook and four bearing pins are formed, with the two ends of two cranes while slings, the middle suspension hook of suspender hangs equipment during lifting.
6. the mounting method of large-sized rolling mills according to claim 1, it is characterized in that: said memorial archway centering is:
(1) centering transmission side memorial archway is at first measured and lower transverse beam bonding surface size, and guarantees that the gap with the outlet base is zero;
(2) rolling mill base and transmission side memorial archway connecting bolt is fastening temporarily;
(3) lower transverse beam is installed, and transmission side memorial archway and lower transverse beam is fastening temporarily;
(4) hold out against the fore side memorial archway from the outside with jack, till the gap with lower transverse beam does not have;
(5) fore side memorial archway and lower transverse beam is fastening temporarily with connecting bolt;
(6) install crossbeam.
7. the mounting method of large-sized rolling mills according to claim 1 is characterized in that: said memorial archway detects and is:
(1) with inside micrometer or with transit detection window verticality, installation accuracy:＜0.05mm/m;
(2) detect the positional precision at milling train center with inside micrometer, installation accuracy: ± 0.50mm;
(3) detect the parallelism detection of milling train center, installation accuracy :≤0.10mm/m with inside micrometer or with transit;
(4) with closing picture horizontal detection memorial archway bottom water Pingdu, installation accuracy:＜0.10mm/m;
(5) with closing picture horizontal detection memorial archway top water Pingdu, installation accuracy:＜0.20mm/m;
(6) memorial archway and base contact surface gap are 0, require the 0.02mm clearance gauge not go into.
8. the mounting method of large-sized rolling mills according to claim 1, it is characterized in that: it is to be benchmark with the milling train center line that said changing rig is installed, carry out centering in conjunction with the memorial archway alignment error, roll change transmission device center line and milling train center line are controlled within the same tolerance range.
9. the mounting method of large-sized rolling mills according to claim 1, it is characterized in that: it is to adopt the principle that interior earlier back is outer, get on, get off that said milling train annex is installed, erection sequence: breast roll is installed, the backing roll track is installed, the working roll track is installed, and last water discharging board is installed, and following water discharging board is installed, jig is installed, and milling train is piping erection at random.
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| CN106140831A (en) * | 2015-04-01 | 2016-11-23 | 上海宝冶集团有限公司 | Milling train tilts and the correction locating measurement method of skew |
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| CN107282641A (en) * | 2016-04-05 | 2017-10-24 | 五冶集团上海有限公司 | A kind of parallels construction method of Bar Wire Product vertical mill base |
| CN105798067A (en) * | 2016-04-28 | 2016-07-27 | 中冶天工集团有限公司 | Accurate installation measuring method for rolling mill bases |
| CN107780433A (en) * | 2016-08-27 | 2018-03-09 | 上海宝冶集团有限公司 | The flow grouting construction method of backing plate |
| CN108927411A (en) * | 2017-05-27 | 2018-12-04 | 中国二十冶集团有限公司 | Milling train installation control net puts the method set |
| CN110000218A (en) * | 2019-04-19 | 2019-07-12 | 中国二冶集团有限公司 | A kind of six frame Continuous mill train construction method of installation of pipe roll line |
| CN110242828A (en) * | 2019-05-13 | 2019-09-17 | 上海二十冶建设有限公司 | A kind of adjustable jackscrew supporting leg and its installation method of cold rolling large size wide flat steel shot-blasting machine |
| CN110560509A (en) * | 2019-10-10 | 2019-12-13 | 中冶天工集团天津有限公司 | Coiler mandrel adjusting method |
| CN111531356A (en) * | 2020-03-27 | 2020-08-14 | 上海二十冶建设有限公司 | Device for fastening foundation bolt of rolling mill base and using method thereof |
| CN111395386A (en) * | 2020-04-22 | 2020-07-10 | 五冶集团上海有限公司 | Installation and construction method of grinding roller base of raw material mill |
| CN112547801A (en) * | 2020-11-17 | 2021-03-26 | 十四冶建设集团云南安装工程有限公司 | High-precision ultrathin aluminum foil mill unit mounting method |
| CN113145647A (en) * | 2021-04-09 | 2021-07-23 | 北京首钢建设集团有限公司 | Rolling mill housing installation structure and installation method |
| CN113957920A (en) * | 2021-10-30 | 2022-01-21 | 中国化学工程第十四建设有限公司 | Installation method of polymerization reactor |
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